60 lines
2.3 KiB
Python
60 lines
2.3 KiB
Python
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import os
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import sys
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from PIL import Image, ImageSequence
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def gif_to_xbm(gif_path, output_h_path, var_name, target_w=None, target_h=None):
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im = Image.open(gif_path)
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frames = []
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for frame in ImageSequence.Iterator(im):
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f = frame.convert('RGBA')
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# Weißer Hintergrund für transparente GIFs
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bg = Image.new('RGBA', f.size, (255, 255, 255))
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f = Image.alpha_composite(bg, f).convert('1') # 1-Bit Schwarz/Weiß
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if target_w and target_h:
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f = f.resize((target_w, target_h), Image.Resampling.NEAREST)
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frames.append(f)
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w, h = frames[0].size
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bytes_per_row = (w + 7) // 8
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with open(output_h_path, 'w') as out:
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out.write(f"#pragma once\n#include <Arduino.h>\n\n")
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out.write(f"// Abmessungen: {w}x{h}, {len(frames)} Frames\n")
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out.write(f"#define {var_name.upper()}_WIDTH {w}\n")
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out.write(f"#define {var_name.upper()}_HEIGHT {h}\n")
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out.write(f"#define {var_name.upper()}_FRAME_COUNT {len(frames)}\n\n")
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# 1. Einzelne Frames als XBM-Arrays schreiben (LSB-first)
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for idx, frame in enumerate(frames):
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out.write(f"const unsigned char {var_name}_frame_{idx}[] PROGMEM = {{\n ")
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pixels = frame.load()
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byte_list = []
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for y in range(h):
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for byte_idx in range(bytes_per_row):
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byte_val = 0
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for bit in range(8):
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x = byte_idx * 8 + bit
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if x < w:
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# 0 = Schwarz (Pixel an bei XBM), 1 = Weiß
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if pixels[x, y] == 0:
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byte_val |= (1 << bit)
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byte_list.append(f"0x{byte_val:02X}")
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out.write(", ".join(byte_list))
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out.write("\n};\n\n")
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# 2. Master-Array aller Frame-Pointer
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out.write(f"const unsigned char* const {var_name}_frames[] PROGMEM = {{\n")
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for idx in range(len(frames)):
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out.write(f" {var_name}_frame_{idx},\n")
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out.write("};\n")
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print(f"Fertig! {len(frames)} Frames exportiert nach: {output_h_path}")
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# Aufruf: Datei, Ausgabedatei, Arrayname, Breite, Höhe
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if __name__ == "__main__":
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gif_to_xbm("fire.gif", "fire_frames.h", "fire_flames", 21, 32)
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gif_to_xbm("clock.gif", "clock_frames.h", "clock", 21, 21)
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